A water heater with a leaking tank, or one near the end of its service life that keeps needing parts, is usually worth replacing rather than repairing. The new unit can be the same type or a different one, depending on fuel, space and hot water use. Call the number on this page to be connected with a local plumber in Phoenix.
When replacement makes sense
- Water is seeping from the tank shell or the bottom seam
- Rust-colored hot water that a flush does not clear
- Scale so heavy that the heater keeps losing elements or capacity
- Repeated repairs on a heater that is getting old
For context, the U.S. Department of Energy lists 10 to 15 years as the typical life of a storage heater. In Phoenix, hard water can shorten the useful life of any heater that is never flushed.
Choosing the next heater
| Type | Worth knowing |
|---|---|
| Gas or electric tank | Lowest upfront cost and simplest swap; loses some heat while idle |
| Tankless | Heats water as it flows; DOE lists about 20 years of life, but output per minute is limited |
| Heat pump | DOE says two to three times as efficient as standard electric; needs room and air around it |
A heat pump unit in a hot garage has plenty of warm air to work with, which is one reason some Phoenix owners look at them. Ask the plumber whether your space and electrical panel suit one.
What the installation involves
- Draining and disconnecting the old heater and hauling it away
- Setting the new unit, often in a drain pan
- Connecting water lines, a new relief valve discharge, and gas venting or wiring
- Filling, purging air and testing for leaks and temperature
Some jobs need a City of Phoenix permit through Planning and Development, especially when gas piping or venting changes. Ask whether the plumber pulls it.
Cost factors
- Type, fuel and capacity of the new heater
- Venting, gas line or electrical upgrades needed to meet current code
- Location: garage, closet, attic or utility room
- Switching types, for example tank to tankless, which adds piping and venting work
Get a written quote that lists the heater model, the labor and any permit.
Protect the new heater
Hard water does not stop after the swap. Flush the tank on a schedule, ask about checking the anode rod, and consider whether a softener makes sense for the whole house. Keeping the area around the heater clear also makes leaks easier to spot early.
Water Heater Replacement questions from Phoenix homeowners
Do I need a permit to replace a water heater in Phoenix?
Should I switch to tankless when replacing a tank?
Are heat pump water heaters a good fit in Phoenix?
How do I keep a new heater from scaling up?
Related plumbing services in Phoenix
Helpful guides
Water Heater Replacement in nearby cities and towns
Maricopa County
Pinal County
Sources
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